The 2007 AIG Japan Open Tennis Championships was a tennis tournament played on outdoor hard courts. It was the 34th edition of the event known that year as the AIG Japan Open Tennis Championships, and was part of the International Series Gold of the 2007 ATP Tour, and of the Tier III Series of the 2007 WTA Tour. Both the men's and the women's events took place at the Ariake Coliseum in Tokyo, Japan, from October 1 through October 7, 2007.
The men's draw included ATP No. 8, US Open semifinalist, Auckland and Båstad champion David Ferrer, Wimbledon quarterfinalist, Halle winner Tomáš Berdych, and Wimbledon semifinalist, Estoril runner-up and Mumbai titlist Richard Gasquet. Also lined up were Las Vegas champion Lleyton Hewitt, Marseille and Halle semifinalist Jarkko Nieminen, Dmitry Tursunov, Ivo Karlović and Fernando Verdasco.
The women's field was led by WTA No. 8, Wimbledon, Memphis and Seoul champion Venus Williams, recent Stanford and New Haven doubles titlist Sania Mirza, and Seoul runner-up, Kolkata winner Maria Kirilenko. Also present were French Open and Wimbledon doubles finalist Ai Sugiyama, Guangzhou titlist Virginie Razzano, Akiko Morigami, Aiko Nakamura and Flavia Pennetta.
See main article: 2007 AIG Japan Open Tennis Championships – Men's singles. 
David Ferrer defeated 
Richard Gasquet, 6–1, 6–2
See main article: 2007 AIG Japan Open Tennis Championships – Women's singles. Virginie Razzano defeated 
Venus Williams, 4–6, 7–6(9–7), 6–4
See main article: 2007 AIG Japan Open Tennis Championships – Men's doubles. 
Jordan Kerr / 
Robert Lindstedt defeated 
Frank Dancevic / Stephen Huss, 6–3, 6–3
See main article: 2007 AIG Japan Open Tennis Championships – Women's doubles. 
Sun Tiantian / Yan Zi defeated Chia-jung Chuang / Vania King, 1–6, 6–2, [10–6]